ToolsZone
Developer

JSON Validator

Validate your JSON and get clear, helpful error messages.

Paste JSON below to validate

How to use JSON Validator

  1. 1

    Paste JSON

    Paste your JSON data into the input field.

  2. 2

    Instant Validation

    The tool will automatically validate your JSON in real-time as you type or paste.

  3. 3

    Fix Errors

    If there are errors, check the exact line and column number. You can also click 'Fix Common Errors' to auto-correct issues like trailing commas.

  4. 4

    Review Stats

    Once valid, view detailed statistics about your JSON structure including keys, arrays, and depth.

Related Tools

JSON Formatter

Format, prettify, and validate JSON with syntax highlighting.

HTML Encoder

Encode special HTML characters to safe HTML entities.

HTML Decoder

Decode HTML entities back to readable text.

Base64 Encoder

Encode any text or string to Base64 format instantly.

Frequently Asked Questions

What causes a JSON trailing comma error?

JSON does not allow a comma after the last item in an object or array. Our 'Fix Common Errors' button can easily remove these for you.

Can I use single quotes in JSON?

No, the JSON specification strictly requires double quotes for all keys and string values.

Are comments allowed in JSON?

Standard JSON does not support comments (like // or /* */). Our tool can strip them out if you need to make the JSON valid.

Is the validation secure?

Yes, validation runs locally in your browser. No data is sent to a server, ensuring your sensitive information stays private.

What does maximum depth mean?

Maximum depth refers to how deeply nested your JSON structure is. An object inside an array inside an object would have a depth of 3.